Home / 220,992.33-331,509.86-87,842.71

Finding the Fourth Proportional to 220,992.33, 331,509.86 and 87,842.71

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Solution

The fourth proportional to 220,992.33, 331,509.86 and 87,842.71 is: 131,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,992.33 : 331,509.86 = 87,842.71 : x
  2. Step 2: Convert to fraction form
    220,992.33/331,509.86 = 87,842.71/x
  3. Step 3: Cross multiply
    220,992.33x = 331,509.86 × 87,842.71
  4. Step 4: Simplify right side
    220,992.33x = 29,120,723,884.95
  5. Step 5: Solve for x
    x = 29,120,723,884.95/220,992.33
  6. Step 6: Final answer
    x = 131,772.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.